Tools/msi/msi.py

# Python MSI Generator
# (C) 2003 Martin v. Loewis
# See "FOO" in comments refers to MSDN sections with the title FOO.
import msilib, schema, sequence, os, glob, time, re, shutil, zipfile
import subprocess, tempfile
from msilib import Feature, CAB, Directory, Dialog, Binary, add_data
import uisample
from win32com.client import constants
from distutils.spawn import find_executable

# Settings can be overridden in config.py below
# 0 for official python.org releases
# 1 for intermediate releases by anybody, with
# a new product code for every package.
snapshot = 1
# 1 means that file extension is px, not py,
# and binaries start with x
testpackage = 0
# Location of build tree
srcdir = os.path.abspath("../..")
# Text to be displayed as the version in dialogs etc.
# goes into file name and ProductCode. Defaults to
# current_version.day for Snapshot, current_version otherwise
full_current_version = None
# Is Tcl available at all?
have_tcl = True
# path to PCbuild directory
PCBUILD="PCbuild"
# msvcrt version
MSVCR = "100"
# Name of certificate in default store to sign MSI with
certname = None
# Make a zip file containing the PDB files for this build?
pdbzip = True

try:
    from config import *
except ImportError:
    pass

# Extract current version from Include/patchlevel.h
lines = open(srcdir + "/Include/patchlevel.h").readlines()
major = minor = micro = level = serial = None
levels = {
    'PY_RELEASE_LEVEL_ALPHA':0xA,
    'PY_RELEASE_LEVEL_BETA': 0xB,
    'PY_RELEASE_LEVEL_GAMMA':0xC,
    'PY_RELEASE_LEVEL_FINAL':0xF
    }
for l in lines:
    if not l.startswith("#define"):
        continue
    l = l.split()
    if len(l) != 3:
        continue
    _, name, value = l
    if name == 'PY_MAJOR_VERSION': major = value
    if name == 'PY_MINOR_VERSION': minor = value
    if name == 'PY_MICRO_VERSION': micro = value
    if name == 'PY_RELEASE_LEVEL': level = levels[value]
    if name == 'PY_RELEASE_SERIAL': serial = value

short_version = major+"."+minor
# See PC/make_versioninfo.c
FIELD3 = 1000*int(micro) + 10*level + int(serial)
current_version = "%s.%d" % (short_version, FIELD3)

# This should never change. The UpgradeCode of this package can be
# used in the Upgrade table of future packages to make the future
# package replace this one. See "UpgradeCode Property".
# upgrade_code gets set to upgrade_code_64 when we have determined
# that the target is Win64.
upgrade_code_snapshot='{92A24481-3ECB-40FC-8836-04B7966EC0D5}'
upgrade_code='{65E6DE48-A358-434D-AA4F-4AF72DB4718F}'
upgrade_code_64='{6A965A0C-6EE6-4E3A-9983-3263F56311EC}'

if snapshot:
    current_version = "%s.%s.%s" % (major, minor, int(time.time()/3600/24))

if full_current_version is None:
    full_current_version = current_version

extensions = [
    'pyexpat.pyd',
    'select.pyd',
    'unicodedata.pyd',
    'winsound.pyd',
    '_bz2.pyd',
    '_elementtree.pyd',
    '_socket.pyd',
    '_ssl.pyd',
    '_testcapi.pyd',
    '_tkinter.pyd',
    '_msi.pyd',
    '_ctypes.pyd',
    '_ctypes_test.pyd',
    '_sqlite3.pyd',
    '_hashlib.pyd',
    '_multiprocessing.pyd',
    '_lzma.pyd',
    '_decimal.pyd',
    '_testbuffer.pyd'
]

# Well-known component UUIDs
# These are needed for SharedDLLs reference counter; if
# a different UUID was used for each incarnation of, say,
# python24.dll, an upgrade would set the reference counter
# from 1 to 2 (due to what I consider a bug in MSI)
# Using the same UUID is fine since these files are versioned,
# so Installer will always keep the newest version.
# NOTE: All uuids are self generated.
pythondll_uuid = {
    "24":"{9B81E618-2301-4035-AC77-75D9ABEB7301}",
    "25":"{2e41b118-38bd-4c1b-a840-6977efd1b911}",
    "26":"{34ebecac-f046-4e1c-b0e3-9bac3cdaacfa}",
    "27":"{4fe21c76-1760-437b-a2f2-99909130a175}",
    "30":"{6953bc3b-6768-4291-8410-7914ce6e2ca8}",
    "31":"{4afcba0b-13e4-47c3-bebe-477428b46913}",
    "32":"{3ff95315-1096-4d31-bd86-601d5438ad5e}",
    "33":"{f7581ca4-d368-4eea-8f82-d48c64c4f047}",
    } [major+minor]

# Compute the name that Sphinx gives to the docfile
docfile = micro
if level < 0xf:
    if level == 0xC:
        docfile += "rc%s" % (serial,)
    else:
        docfile += '%x%s' % (level, serial)
docfile = 'python%s%s%s.chm' % (major, minor, docfile)

# Build the mingw import library, libpythonXY.a
# This requires 'nm' and 'dlltool' executables on your PATH
def build_mingw_lib(lib_file, def_file, dll_file, mingw_lib):
    warning = "WARNING: %s - libpythonXX.a not built"
    nm = find_executable('nm')
    dlltool = find_executable('dlltool')

    if not nm or not dlltool:
        print(warning % "nm and/or dlltool were not found")
        return False

    nm_command = '%s -Cs %s' % (nm, lib_file)
    dlltool_command = "%s --dllname %s --def %s --output-lib %s" % \
        (dlltool, dll_file, def_file, mingw_lib)
    export_match = re.compile(r"^_imp__(.*) in python\d+\.dll").match

    f = open(def_file,'w')
    f.write("LIBRARY %s\n" % dll_file)
    f.write("EXPORTS\n")

    nm_pipe = os.popen(nm_command)
    for line in nm_pipe.readlines():
        m = export_match(line)
        if m:
            f.write(m.group(1)+"\n")
    f.close()
    exit = nm_pipe.close()

    if exit:
        print(warning % "nm did not run successfully")
        return False

    if os.system(dlltool_command) != 0:
        print(warning % "dlltool did not run successfully")
        return False

    return True

# Target files (.def and .a) go in PCBuild directory
lib_file = os.path.join(srcdir, PCBUILD, "python%s%s.lib" % (major, minor))
def_file = os.path.join(srcdir, PCBUILD, "python%s%s.def" % (major, minor))
dll_file = "python%s%s.dll" % (major, minor)
mingw_lib = os.path.join(srcdir, PCBUILD, "libpython%s%s.a" % (major, minor))

have_mingw = build_mingw_lib(lib_file, def_file, dll_file, mingw_lib)

# Determine the target architecture
if os.system("nmake /nologo /c /f msisupport.mak") != 0:
    raise RuntimeError("'nmake /f msisupport.mak' failed")
dll_path = os.path.join(srcdir, PCBUILD, dll_file)
msilib.set_arch_from_file(dll_path)
if msilib.pe_type(dll_path) != msilib.pe_type("msisupport.dll"):
    raise SystemError("msisupport.dll for incorrect architecture")

if msilib.Win64:
    upgrade_code = upgrade_code_64

if snapshot:
    product_code = msilib.gen_uuid()
else:
    # official release: generate UUID from the download link that the file will have
    import uuid
    product_code = uuid.uuid3(uuid.NAMESPACE_URL,
                    'http://www.python.org/ftp/python/%s.%s.%s/python-%s%s.msi' %
                    (major, minor, micro, full_current_version, msilib.arch_ext))
    product_code = '{%s}' % product_code

if testpackage:
    ext = 'px'
    testprefix = 'x'
else:
    ext = 'py'
    testprefix = ''

if msilib.Win64:
    SystemFolderName = "[System64Folder]"
    registry_component = 4|256
else:
    SystemFolderName = "[SystemFolder]"
    registry_component = 4

msilib.reset()

# condition in which to install pythonxy.dll in system32:
# a) it is Windows 9x or
# b) it is NT, the user is privileged, and has chosen per-machine installation
sys32cond = "(Windows9x or (Privileged and ALLUSERS))"

def build_database():
    """Generate an empty database, with just the schema and the
    Summary information stream."""
    if snapshot:
        uc = upgrade_code_snapshot
    else:
        uc = upgrade_code
    if msilib.Win64:
        productsuffix = " (64-bit)"
    else:
        productsuffix = ""
    # schema represents the installer 2.0 database schema.
    # sequence is the set of standard sequences
    # (ui/execute, admin/advt/install)
    msiname = "python-%s%s.msi" % (full_current_version, msilib.arch_ext)
    db = msilib.init_database(msiname,
                  schema, ProductName="Python "+full_current_version+productsuffix,
                  ProductCode=product_code,
                  ProductVersion=current_version,
                  Manufacturer=u"Python Software Foundation",
                  request_uac = True)
    # The default sequencing of the RemoveExistingProducts action causes
    # removal of files that got just installed. Place it after
    # InstallInitialize, so we first uninstall everything, but still roll
    # back in case the installation is interrupted
    msilib.change_sequence(sequence.InstallExecuteSequence,
                           "RemoveExistingProducts", 1510)
    msilib.add_tables(db, sequence)
    # We cannot set ALLUSERS in the property table, as this cannot be
    # reset if the user choses a per-user installation. Instead, we
    # maintain WhichUsers, which can be "ALL" or "JUSTME". The UI manages
    # this property, and when the execution starts, ALLUSERS is set
    # accordingly.
    add_data(db, "Property", [("UpgradeCode", uc),
                              ("WhichUsers", "ALL"),
                              ("ProductLine", "Python%s%s" % (major, minor)),
                             ])
    db.Commit()
    return db, msiname

def remove_old_versions(db):
    "Fill the upgrade table."
    start = "%s.%s.0" % (major, minor)
    # This requests that feature selection states of an older
    # installation should be forwarded into this one. Upgrading
    # requires that both the old and the new installation are
    # either both per-machine or per-user.
    migrate_features = 1
    # See "Upgrade Table". We remove releases with the same major and
    # minor version. For an snapshot, we remove all earlier snapshots. For
    # a release, we remove all snapshots, and all earlier releases.
    if snapshot:
        add_data(db, "Upgrade",
            [(upgrade_code_snapshot, start,
              current_version,
              None,                     # Ignore language
              migrate_features,
              None,                     # Migrate ALL features
              "REMOVEOLDSNAPSHOT")])
        props = "REMOVEOLDSNAPSHOT"
    else:
        add_data(db, "Upgrade",
            [(upgrade_code, start, current_version,
              None, migrate_features, None, "REMOVEOLDVERSION"),
             (upgrade_code_snapshot, start, "%s.%d.0" % (major, int(minor)+1),
              None, migrate_features, None, "REMOVEOLDSNAPSHOT")])
        props = "REMOVEOLDSNAPSHOT;REMOVEOLDVERSION"

    props += ";TARGETDIR;DLLDIR;LAUNCHERDIR"
    # Installer collects the product codes of the earlier releases in
    # these properties. In order to allow modification of the properties,
    # they must be declared as secure. See "SecureCustomProperties Property"
    add_data(db, "Property", [("SecureCustomProperties", props)])

class PyDialog(Dialog):
    """Dialog class with a fixed layout: controls at the top, then a ruler,
    then a list of buttons: back, next, cancel. Optionally a bitmap at the
    left."""
    def __init__(self, *args, **kw):
        """Dialog(database, name, x, y, w, h, attributes, title, first,
        default, cancel, bitmap=true)"""
        Dialog.__init__(self, *args)
        ruler = self.h - 36
        bmwidth = 152*ruler/328
        if kw.get("bitmap", True):
            self.bitmap("Bitmap", 0, 0, bmwidth, ruler, "PythonWin")
        self.line("BottomLine", 0, ruler, self.w, 0)

    def title(self, title):
        "Set the title text of the dialog at the top."
        # name, x, y, w, h, flags=Visible|Enabled|Transparent|NoPrefix,
        # text, in VerdanaBold10
        self.text("Title", 135, 10, 220, 60, 0x30003,
                  r"{\VerdanaBold10}%s" % title)

    def back(self, title, next, name = "Back", active = 1):
        """Add a back button with a given title, the tab-next button,
        its name in the Control table, possibly initially disabled.

        Return the button, so that events can be associated"""
        if active:
            flags = 3 # Visible|Enabled
        else:
            flags = 1 # Visible
        return self.pushbutton(name, 180, self.h-27 , 56, 17, flags, title, next)

    def cancel(self, title, next, name = "Cancel", active = 1):
        """Add a cancel button with a given title, the tab-next button,
        its name in the Control table, possibly initially disabled.

        Return the button, so that events can be associated"""
        if active:
            flags = 3 # Visible|Enabled
        else:
            flags = 1 # Visible
        return self.pushbutton(name, 304, self.h-27, 56, 17, flags, title, next)

    def next(self, title, next, name = "Next", active = 1):
        """Add a Next button with a given title, the tab-next button,
        its name in the Control table, possibly initially disabled.

        Return the button, so that events can be associated"""
        if active:
            flags = 3 # Visible|Enabled
        else:
            flags = 1 # Visible
        return self.pushbutton(name, 236, self.h-27, 56, 17, flags, title, next)

    def xbutton(self, name, title, next, xpos):
        """Add a button with a given title, the tab-next button,
        its name in the Control table, giving its x position; the
        y-position is aligned with the other buttons.

        Return the button, so that events can be associated"""
        return self.pushbutton(name, int(self.w*xpos - 28), self.h-27, 56, 17, 3, title, next)

def add_ui(db):
    x = y = 50
    w = 370
    h = 300
    title = "[ProductName] Setup"

    # see "Dialog Style Bits"
    modal = 3      # visible | modal
    modeless = 1   # visible
    track_disk_space = 32

    add_data(db, 'ActionText', uisample.ActionText)
    add_data(db, 'UIText', uisample.UIText)

    # Bitmaps
    if not os.path.exists(srcdir+r"\PC\python_icon.exe"):
        raise RuntimeError("Run icons.mak in PC directory")
    add_data(db, "Binary",
             [("PythonWin", msilib.Binary(r"%s\PCbuild\installer.bmp" % srcdir)), # 152x328 pixels
              ("py.ico",msilib.Binary(srcdir+r"\PC\py.ico")),
             ])
    add_data(db, "Icon",
             [("python_icon.exe", msilib.Binary(srcdir+r"\PC\python_icon.exe"))])

    # Scripts
    # CheckDir sets TargetExists if TARGETDIR exists.
    # UpdateEditIDLE sets the REGISTRY.tcl component into
    # the installed/uninstalled state according to both the
    # Extensions and TclTk features.
    add_data(db, "Binary", [("Script", msilib.Binary("msisupport.dll"))])
    # See "Custom Action Type 1"
    if msilib.Win64:
        CheckDir = "CheckDir"
        UpdateEditIDLE = "UpdateEditIDLE"
    else:
        CheckDir =  "_CheckDir@4"
        UpdateEditIDLE = "_UpdateEditIDLE@4"
    add_data(db, "CustomAction",
        [("CheckDir", 1, "Script", CheckDir)])
    if have_tcl:
        add_data(db, "CustomAction",
        [("UpdateEditIDLE", 1, "Script", UpdateEditIDLE)])

    # UI customization properties
    add_data(db, "Property",
             # See "DefaultUIFont Property"
             [("DefaultUIFont", "DlgFont8"),
              # See "ErrorDialog Style Bit"
              ("ErrorDialog", "ErrorDlg"),
              ("Progress1", "Install"),   # modified in maintenance type dlg
              ("Progress2", "installs"),
              ("ModifyPath", "0"),
              ("MaintenanceForm_Action", "Repair")])

    # Fonts, see "TextStyle Table"
    add_data(db, "TextStyle",
             [("DlgFont8", "Tahoma", 9, None, 0),
              ("DlgFontBold8", "Tahoma", 8, None, 1), #bold
              ("VerdanaBold10", "Verdana", 10, None, 1),
              ("VerdanaRed9", "Verdana", 9, 255, 0),
             ])

    compileargs = r'-Wi "[TARGETDIR]Lib\compileall.py" -f -x "bad_coding|badsyntax|site-packages|py2_|lib2to3\\tests" "[TARGETDIR]Lib"'
    lib2to3args = r'-c "import lib2to3.pygram, lib2to3.patcomp;lib2to3.patcomp.PatternCompiler()"'
    # See "CustomAction Table"
    add_data(db, "CustomAction", [
        # msidbCustomActionTypeFirstSequence + msidbCustomActionTypeTextData + msidbCustomActionTypeProperty
        # See "Custom Action Type 51",
        # "Custom Action Execution Scheduling Options"
        ("InitialTargetDir", 307, "TARGETDIR",
         "[WindowsVolume]Python%s%s" % (major, minor)),
        ("SetDLLDirToTarget", 307, "DLLDIR", "[TARGETDIR]"),
        ("SetDLLDirToSystem32", 307, "DLLDIR", SystemFolderName),
        ("SetLauncherDirToTarget", 307, "LAUNCHERDIR", "[TARGETDIR]"),
        ("SetLauncherDirToWindows", 307, "LAUNCHERDIR", "[WindowsFolder]"),
        # msidbCustomActionTypeExe + msidbCustomActionTypeSourceFile
        # See "Custom Action Type 18"
        ("CompilePyc", 18, "python.exe", compileargs),
        ("CompilePyo", 18, "python.exe", "-O "+compileargs),
        ("CompileGrammar", 18, "python.exe", lib2to3args),
        ])

    # UI Sequences, see "InstallUISequence Table", "Using a Sequence Table"
    # Numbers indicate sequence; see sequence.py for how these action integrate
    add_data(db, "InstallUISequence",
             [("PrepareDlg", "Not Privileged or Windows9x or Installed", 140),
              ("WhichUsersDlg", "Privileged and not Windows9x and not Installed", 141),
              ("InitialTargetDir", 'TARGETDIR=""', 750),
              # In the user interface, assume all-users installation if privileged.
              ("SetDLLDirToSystem32", 'DLLDIR="" and ' + sys32cond, 751),
              ("SetDLLDirToTarget", 'DLLDIR="" and not ' + sys32cond, 752),
              ("SetLauncherDirToWindows", 'LAUNCHERDIR="" and ' + sys32cond, 753),
              ("SetLauncherDirToTarget", 'LAUNCHERDIR="" and not ' + sys32cond, 754),
              ("SelectDirectoryDlg", "Not Installed", 1230),
              # XXX no support for resume installations yet
              #("ResumeDlg", "Installed AND (RESUME OR Preselected)", 1240),
              ("MaintenanceTypeDlg", "Installed AND NOT RESUME AND NOT Preselected", 1250),
              ("ProgressDlg", None, 1280)])
    add_data(db, "AdminUISequence",
             [("InitialTargetDir", 'TARGETDIR=""', 750),
              ("SetDLLDirToTarget", 'DLLDIR=""', 751),
              ("SetLauncherDirToTarget", 'LAUNCHERDIR=""', 752),
             ])

    # Prepend TARGETDIR to the system path, and remove it on uninstall.
    add_data(db, "Environment",
             [("PathAddition", "=-*Path", "[TARGETDIR];[~]", "REGISTRY.path")])

    # Execute Sequences
    add_data(db, "InstallExecuteSequence",
            [("InitialTargetDir", 'TARGETDIR=""', 750),
             ("SetDLLDirToSystem32", 'DLLDIR="" and ' + sys32cond, 751),
             ("SetDLLDirToTarget", 'DLLDIR="" and not ' + sys32cond, 752),
             ("SetLauncherDirToWindows", 'LAUNCHERDIR="" and ' + sys32cond, 753),
             ("SetLauncherDirToTarget", 'LAUNCHERDIR="" and not ' + sys32cond, 754),
             ("UpdateEditIDLE", None, 1050),
             ("CompilePyc", "COMPILEALL", 6800),
             ("CompilePyo", "COMPILEALL", 6801),
             ("CompileGrammar", "COMPILEALL", 6802),
            ])
    add_data(db, "AdminExecuteSequence",
            [("InitialTargetDir", 'TARGETDIR=""', 750),
             ("SetDLLDirToTarget", 'DLLDIR=""', 751),
             ("SetLauncherDirToTarget", 'LAUNCHERDIR=""', 752),
             ("CompilePyc", "COMPILEALL", 6800),
             ("CompilePyo", "COMPILEALL", 6801),
             ("CompileGrammar", "COMPILEALL", 6802),
            ])

    #####################################################################
    # Standard dialogs: FatalError, UserExit, ExitDialog
    fatal=PyDialog(db, "FatalError", x, y, w, h, modal, title,
                 "Finish", "Finish", "Finish")
    fatal.title("[ProductName] Installer ended prematurely")
    fatal.back("< Back", "Finish", active = 0)
    fatal.cancel("Cancel", "Back", active = 0)
    fatal.text("Description1", 135, 70, 220, 80, 0x30003,
               "[ProductName] setup ended prematurely because of an error.  Your system has not been modified.  To install this program at a later time, please run the installation again.")
    fatal.text("Description2", 135, 155, 220, 20, 0x30003,
               "Click the Finish button to exit the Installer.")
    c=fatal.next("Finish", "Cancel", name="Finish")
    # See "ControlEvent Table". Parameters are the event, the parameter
    # to the action, and optionally the condition for the event, and the order
    # of events.
    c.event("EndDialog", "Exit")

    user_exit=PyDialog(db, "UserExit", x, y, w, h, modal, title,
                 "Finish", "Finish", "Finish")
    user_exit.title("[ProductName] Installer was interrupted")
    user_exit.back("< Back", "Finish", active = 0)
    user_exit.cancel("Cancel", "Back", active = 0)
    user_exit.text("Description1", 135, 70, 220, 80, 0x30003,
               "[ProductName] setup was interrupted.  Your system has not been modified.  "
               "To install this program at a later time, please run the installation again.")
    user_exit.text("Description2", 135, 155, 220, 20, 0x30003,
               "Click the Finish button to exit the Installer.")
    c = user_exit.next("Finish", "Cancel", name="Finish")
    c.event("EndDialog", "Exit")

    exit_dialog = PyDialog(db, "ExitDialog", x, y, w, h, modal, title,
                         "Finish", "Finish", "Finish")
    exit_dialog.title("Complete the [ProductName] Installer")
    exit_dialog.back("< Back", "Finish", active = 0)
    exit_dialog.cancel("Cancel", "Back", active = 0)
    exit_dialog.text("Acknowledgements", 135, 95, 220, 120, 0x30003,
      "Special Windows thanks to:\n"
      "    Mark Hammond, without whose years of freely \n"
      "    shared Windows expertise, Python for Windows \n"
      "    would still be Python for DOS.")

    c = exit_dialog.text("warning", 135, 200, 220, 40, 0x30003,
            "{\\VerdanaRed9}Warning: Python 2.5.x is the last "
            "Python release for Windows 9x.")
    c.condition("Hide", "NOT Version9X")

    exit_dialog.text("Description", 135, 235, 220, 20, 0x30003,
               "Click the Finish button to exit the Installer.")
    c = exit_dialog.next("Finish", "Cancel", name="Finish")
    c.event("EndDialog", "Return")

    #####################################################################
    # Required dialog: FilesInUse, ErrorDlg
    inuse = PyDialog(db, "FilesInUse",
                     x, y, w, h,
                     19,                # KeepModeless|Modal|Visible
                     title,
                     "Retry", "Retry", "Retry", bitmap=False)
    inuse.text("Title", 15, 6, 200, 15, 0x30003,
               r"{\DlgFontBold8}Files in Use")
    inuse.text("Description", 20, 23, 280, 20, 0x30003,
               "Some files that need to be updated are currently in use.")
    inuse.text("Text", 20, 55, 330, 50, 3,
               "The following applications are using files that need to be updated by this setup. Close these applications and then click Retry to continue the installation or Cancel to exit it.")
    inuse.control("List", "ListBox", 20, 107, 330, 130, 7, "FileInUseProcess",
                  None, None, None)
    c=inuse.back("Exit", "Ignore", name="Exit")
    c.event("EndDialog", "Exit")
    c=inuse.next("Ignore", "Retry", name="Ignore")
    c.event("EndDialog", "Ignore")
    c=inuse.cancel("Retry", "Exit", name="Retry")
    c.event("EndDialog","Retry")


    # See "Error Dialog". See "ICE20" for the required names of the controls.
    error = Dialog(db, "ErrorDlg",
                   50, 10, 330, 101,
                   65543,       # Error|Minimize|Modal|Visible
                   title,
                   "ErrorText", None, None)
    error.text("ErrorText", 50,9,280,48,3, "")
    error.control("ErrorIcon", "Icon", 15, 9, 24, 24, 5242881, None, "py.ico", None, None)
    error.pushbutton("N",120,72,81,21,3,"No",None).event("EndDialog","ErrorNo")
    error.pushbutton("Y",240,72,81,21,3,"Yes",None).event("EndDialog","ErrorYes")
    error.pushbutton("A",0,72,81,21,3,"Abort",None).event("EndDialog","ErrorAbort")
    error.pushbutton("C",42,72,81,21,3,"Cancel",None).event("EndDialog","ErrorCancel")
    error.pushbutton("I",81,72,81,21,3,"Ignore",None).event("EndDialog","ErrorIgnore")
    error.pushbutton("O",159,72,81,21,3,"Ok",None).event("EndDialog","ErrorOk")
    error.pushbutton("R",198,72,81,21,3,"Retry",None).event("EndDialog","ErrorRetry")

    #####################################################################
    # Global "Query Cancel" dialog
    cancel = Dialog(db, "CancelDlg", 50, 10, 260, 85, 3, title,
                    "No", "No", "No")
    cancel.text("Text", 48, 15, 194, 30, 3,
                "Are you sure you want to cancel [ProductName] installation?")
    cancel.control("Icon", "Icon", 15, 15, 24, 24, 5242881, None,
                   "py.ico", None, None)
    c=cancel.pushbutton("Yes", 72, 57, 56, 17, 3, "Yes", "No")
    c.event("EndDialog", "Exit")

    c=cancel.pushbutton("No", 132, 57, 56, 17, 3, "No", "Yes")
    c.event("EndDialog", "Return")

    #####################################################################
    # Global "Wait for costing" dialog
    costing = Dialog(db, "WaitForCostingDlg", 50, 10, 260, 85, modal, title,
                     "Return", "Return", "Return")
    costing.text("Text", 48, 15, 194, 30, 3,
                 "Please wait while the installer finishes determining your disk space requirements.")
    costing.control("Icon", "Icon", 15, 15, 24, 24, 5242881, None,
                    "py.ico", None, None)
    c = costing.pushbutton("Return", 102, 57, 56, 17, 3, "Return", None)
    c.event("EndDialog", "Exit")

    #####################################################################
    # Preparation dialog: no user input except cancellation
    prep = PyDialog(db, "PrepareDlg", x, y, w, h, modeless, title,
                    "Cancel", "Cancel", "Cancel")
    prep.text("Description", 135, 70, 220, 40, 0x30003,
              "Please wait while the Installer prepares to guide you through the installation.")
    prep.title("Welcome to the [ProductName] Installer")
    c=prep.text("ActionText", 135, 110, 220, 20, 0x30003, "Pondering...")
    c.mapping("ActionText", "Text")
    c=prep.text("ActionData", 135, 135, 220, 30, 0x30003, None)
    c.mapping("ActionData", "Text")
    prep.back("Back", None, active=0)
    prep.next("Next", None, active=0)
    c=prep.cancel("Cancel", None)
    c.event("SpawnDialog", "CancelDlg")

    #####################################################################
    # Target directory selection
    seldlg = PyDialog(db, "SelectDirectoryDlg", x, y, w, h, modal, title,
                    "Next", "Next", "Cancel")
    seldlg.title("Select Destination Directory")
    c = seldlg.text("Existing", 135, 25, 235, 30, 0x30003,
                    "{\VerdanaRed9}This update will replace your existing [ProductLine] installation.")
    c.condition("Hide", 'REMOVEOLDVERSION="" and REMOVEOLDSNAPSHOT=""')
    seldlg.text("Description", 135, 50, 220, 40, 0x30003,
               "Please select a directory for the [ProductName] files.")

    seldlg.back("< Back", None, active=0)
    c = seldlg.next("Next >", "Cancel")
    c.event("DoAction", "CheckDir", "TargetExistsOk<>1", order=1)
    # If the target exists, but we found that we are going to remove old versions, don't bother
    # confirming that the target directory exists. Strictly speaking, we should determine that
    # the target directory is indeed the target of the product that we are going to remove, but
    # I don't know how to do that.
    c.event("SpawnDialog", "ExistingDirectoryDlg", 'TargetExists=1 and REMOVEOLDVERSION="" and REMOVEOLDSNAPSHOT=""', 2)
    c.event("SetTargetPath", "TARGETDIR", 'TargetExists=0 or REMOVEOLDVERSION<>"" or REMOVEOLDSNAPSHOT<>""', 3)
    c.event("SpawnWaitDialog", "WaitForCostingDlg", "CostingComplete=1", 4)
    #c.event("NewDialog", "PathInfoDlg", "1=1", 5) # Show this once no matter what.
    c.event("NewDialog", "PathInfoDlg", 'TargetExists=0 or REMOVEOLDVERSION<>"" or REMOVEOLDSNAPSHOT<>""', 5)

    # SelectFeaturesDlg is no longer directly shown from here. PathInfoDlg
    # currently takes care of showing it.

    c = seldlg.cancel("Cancel", "DirectoryCombo")
    c.event("SpawnDialog", "CancelDlg")

    seldlg.control("DirectoryCombo", "DirectoryCombo", 135, 70, 172, 80, 393219,
                   "TARGETDIR", None, "DirectoryList", None)
    seldlg.control("DirectoryList", "DirectoryList", 135, 90, 208, 136, 3, "TARGETDIR",
                   None, "PathEdit", None)
    seldlg.control("PathEdit", "PathEdit", 135, 230, 206, 16, 3, "TARGETDIR", None, "Next", None)
    c = seldlg.pushbutton("Up", 306, 70, 18, 18, 3, "Up", None)
    c.event("DirectoryListUp", "0")
    c = seldlg.pushbutton("NewDir", 324, 70, 30, 18, 3, "New", None)
    c.event("DirectoryListNew", "0")


    #####################################################################
    # PathInfoDlg
    path_dialog = PyDialog(db, "PathInfoDlg", x, y, w, h, modal, title,
                           "Yes", "No", "Yes")
    path_dialog.title("New for Python 3.3")
    path_dialog.text("News", 135, 65, 240, 130, 0x30003,
        "New in 3.3 is the ability to add [TARGETDIR] to\n"
        "your system's Path variable. This option allows you\n"
        "to type `python` at a command prompt without\n"
        "requiring anything else on your part.\n\n"
        "However, users of multiple versions need to be\n"
        "aware that this will overrule the behavior of any\n"
        "existing Python installations that you have placed\n"
        "on the Path.\n\n"
        "If you choose to enable this feature, it will be\n"
        "applied after you logout."
        )

    path_dialog.text("Question", 135, 235, 240, 40, 0x30003,
            "{\\VerdanaBold10}Would you like to add Python to the Path?")

    c = path_dialog.back("< Back", "No")
    c.event("NewDialog", "SelectDirectoryDlg")

    c = path_dialog.next("Yes", "Back", name="Yes")
    c.event("[ModifyPath]", "1", order=1)
    c.event("NewDialog", "SelectFeaturesDlg", order=2)

    c = path_dialog.cancel("No", "Yes", name="No")
    c.event("NewDialog", "SelectFeaturesDlg", order=1)

    #####################################################################
    # SelectFeaturesDlg
    features = PyDialog(db, "SelectFeaturesDlg", x, y, w, h, modal|track_disk_space,
                        title, "Tree", "Next", "Cancel")
    features.title("Customize [ProductName]")
    features.text("Description", 135, 35, 220, 15, 0x30003,
                  "Select the way you want features to be installed.")
    features.text("Text", 135,45,220,30, 3,
                  "Click on the icons in the tree below to change the way features will be installed.")

    c=features.back("< Back", "Next")
    c.event("NewDialog", "PathInfoDlg")

    c=features.next("Next >", "Cancel")
    c.mapping("SelectionNoItems", "Enabled")
    c.event("SpawnDialog", "DiskCostDlg", "OutOfDiskSpace=1", order=1)
    c.event("EndDialog", "Return", "OutOfDiskSpace<>1", order=2)

    c=features.cancel("Cancel", "Tree")
    c.event("SpawnDialog", "CancelDlg")

    # The browse property is not used, since we have only a single target path (selected already)
    features.control("Tree", "SelectionTree", 135, 75, 220, 95, 7, "_BrowseProperty",
                     "Tree of selections", "Back", None)

    #c=features.pushbutton("Reset", 42, 243, 56, 17, 3, "Reset", "DiskCost")
    #c.mapping("SelectionNoItems", "Enabled")
    #c.event("Reset", "0")

    features.control("Box", "GroupBox", 135, 170, 225, 90, 1, None, None, None, None)

    c=features.xbutton("DiskCost", "Disk &Usage", None, 0.10)
    c.mapping("SelectionNoItems","Enabled")
    c.event("SpawnDialog", "DiskCostDlg")

    c=features.xbutton("Advanced", "Advanced", None, 0.30)
    c.event("SpawnDialog", "AdvancedDlg")

    c=features.text("ItemDescription", 140, 180, 210, 40, 3,
                  "Multiline description of the currently selected item.")
    c.mapping("SelectionDescription","Text")

    c=features.text("ItemSize", 140, 225, 210, 33, 3,
                    "The size of the currently selected item.")
    c.mapping("SelectionSize", "Text")

    #####################################################################
    # Disk cost
    cost = PyDialog(db, "DiskCostDlg", x, y, w, h, modal, title,
                    "OK", "OK", "OK", bitmap=False)
    cost.text("Title", 15, 6, 200, 15, 0x30003,
              "{\DlgFontBold8}Disk Space Requirements")
    cost.text("Description", 20, 20, 280, 20, 0x30003,
              "The disk space required for the installation of the selected features.")
    cost.text("Text", 20, 53, 330, 60, 3,
              "The highlighted volumes (if any) do not have enough disk space "
              "available for the currently selected features.  You can either "
              "remove some files from the highlighted volumes, or choose to "
              "install less features onto local drive(s), or select different "
              "destination drive(s).")
    cost.control("VolumeList", "VolumeCostList", 20, 100, 330, 150, 393223,
                 None, "{120}{70}{70}{70}{70}", None, None)
    cost.xbutton("OK", "Ok", None, 0.5).event("EndDialog", "Return")

    #####################################################################
    # WhichUsers Dialog. Only available on NT, and for privileged users.
    # This must be run before FindRelatedProducts, because that will
    # take into account whether the previous installation was per-user
    # or per-machine. We currently don't support going back to this
    # dialog after "Next" was selected; to support this, we would need to
    # find how to reset the ALLUSERS property, and how to re-run
    # FindRelatedProducts.
    # On Windows9x, the ALLUSERS property is ignored on the command line
    # and in the Property table, but installer fails according to the documentation
    # if a dialog attempts to set ALLUSERS.
    whichusers = PyDialog(db, "WhichUsersDlg", x, y, w, h, modal, title,
                        "AdminInstall", "Next", "Cancel")
    whichusers.title("Select whether to install [ProductName] for all users of this computer.")
    # A radio group with two options: allusers, justme
    g = whichusers.radiogroup("AdminInstall", 135, 60, 235, 80, 3,
                              "WhichUsers", "", "Next")
    g.condition("Disable", "VersionNT=600") # Not available on Vista and Windows 2008
    g.add("ALL", 0, 5, 150, 20, "Install for all users")
    g.add("JUSTME", 0, 25, 235, 20, "Install just for me (not available on Windows Vista)")

    whichusers.back("Back", None, active=0)

    c = whichusers.next("Next >", "Cancel")
    c.event("[ALLUSERS]", "1", 'WhichUsers="ALL"', 1)
    c.event("EndDialog", "Return", order = 2)

    c = whichusers.cancel("Cancel", "AdminInstall")
    c.event("SpawnDialog", "CancelDlg")

    #####################################################################
    # Advanced Dialog.
    advanced = PyDialog(db, "AdvancedDlg", x, y, w, h, modal, title,
                        "CompilePyc", "Ok", "Ok")
    advanced.title("Advanced Options for [ProductName]")
    # A radio group with two options: allusers, justme
    advanced.checkbox("CompilePyc", 135, 60, 230, 50, 3,
                      "COMPILEALL", "Compile .py files to byte code after installation", "Ok")

    c = advanced.cancel("Ok", "CompilePyc", name="Ok") # Button just has location of cancel button.
    c.event("EndDialog", "Return")

    #####################################################################
    # Existing Directory dialog
    dlg = Dialog(db, "ExistingDirectoryDlg", 50, 30, 200, 80, modal, title,
                   "No", "No", "No")
    dlg.text("Title", 10, 20, 180, 40, 3,
             "[TARGETDIR] exists. Are you sure you want to overwrite existing files?")
    c=dlg.pushbutton("Yes", 30, 60, 55, 17, 3, "Yes", "No")
    c.event("[TargetExists]", "0", order=1)
    c.event("[TargetExistsOk]", "1", order=2)
    c.event("EndDialog", "Return", order=3)
    c=dlg.pushbutton("No", 115, 60, 55, 17, 3, "No", "Yes")
    c.event("EndDialog", "Return")

    #####################################################################
    # Installation Progress dialog (modeless)
    progress = PyDialog(db, "ProgressDlg", x, y, w, h, modeless, title,
                        "Cancel", "Cancel", "Cancel", bitmap=False)
    progress.text("Title", 20, 15, 200, 15, 0x30003,
                  "{\DlgFontBold8}[Progress1] [ProductName]")
    progress.text("Text", 35, 65, 300, 30, 3,
                  "Please wait while the Installer [Progress2] [ProductName]. "
                  "This may take several minutes.")
    progress.text("StatusLabel", 35, 100, 35, 20, 3, "Status:")

    c=progress.text("ActionText", 70, 100, w-70, 20, 3, "Pondering...")
    c.mapping("ActionText", "Text")

    #c=progress.text("ActionData", 35, 140, 300, 20, 3, None)
    #c.mapping("ActionData", "Text")

    c=progress.control("ProgressBar", "ProgressBar", 35, 120, 300, 10, 65537,
                       None, "Progress done", None, None)
    c.mapping("SetProgress", "Progress")

    progress.back("< Back", "Next", active=False)
    progress.next("Next >", "Cancel", active=False)
    progress.cancel("Cancel", "Back").event("SpawnDialog", "CancelDlg")

    # Maintenance type: repair/uninstall
    maint = PyDialog(db, "MaintenanceTypeDlg", x, y, w, h, modal, title,
                     "Next", "Next", "Cancel")
    maint.title("Welcome to the [ProductName] Setup Wizard")
    maint.text("BodyText", 135, 63, 230, 42, 3,
               "Select whether you want to repair or remove [ProductName].")
    g=maint.radiogroup("RepairRadioGroup", 135, 108, 230, 60, 3,
                        "MaintenanceForm_Action", "", "Next")
    g.add("Change", 0, 0, 200, 17, "&Change [ProductName]")
    g.add("Repair", 0, 18, 200, 17, "&Repair [ProductName]")
    g.add("Remove", 0, 36, 200, 17, "Re&move [ProductName]")

    maint.back("< Back", None, active=False)
    c=maint.next("Finish", "Cancel")
    # Change installation: Change progress dialog to "Change", then ask
    # for feature selection
    c.event("[Progress1]", "Change", 'MaintenanceForm_Action="Change"', 1)
    c.event("[Progress2]", "changes", 'MaintenanceForm_Action="Change"', 2)

    # Reinstall: Change progress dialog to "Repair", then invoke reinstall
    # Also set list of reinstalled features to "ALL"
    c.event("[REINSTALL]", "ALL", 'MaintenanceForm_Action="Repair"', 5)
    c.event("[Progress1]", "Repairing", 'MaintenanceForm_Action="Repair"', 6)
    c.event("[Progress2]", "repairs", 'MaintenanceForm_Action="Repair"', 7)
    c.event("Reinstall", "ALL", 'MaintenanceForm_Action="Repair"', 8)

    # Uninstall: Change progress to "Remove", then invoke uninstall
    # Also set list of removed features to "ALL"
    c.event("[REMOVE]", "ALL", 'MaintenanceForm_Action="Remove"', 11)
    c.event("[Progress1]", "Removing", 'MaintenanceForm_Action="Remove"', 12)
    c.event("[Progress2]", "removes", 'MaintenanceForm_Action="Remove"', 13)
    c.event("Remove", "ALL", 'MaintenanceForm_Action="Remove"', 14)

    # Close dialog when maintenance action scheduled
    c.event("EndDialog", "Return", 'MaintenanceForm_Action<>"Change"', 20)
    c.event("NewDialog", "SelectFeaturesDlg", 'MaintenanceForm_Action="Change"', 21)

    maint.cancel("Cancel", "RepairRadioGroup").event("SpawnDialog", "CancelDlg")


# See "Feature Table". The feature level is 1 for all features,
# and the feature attributes are 0 for the DefaultFeature, and
# FollowParent for all other features. The numbers are the Display
# column.
def add_features(db):
    # feature attributes:
    # msidbFeatureAttributesFollowParent == 2
    # msidbFeatureAttributesDisallowAdvertise == 8
    # Features that need to be installed with together with the main feature
    # (i.e. additional Python libraries) need to follow the parent feature.
    # Features that have no advertisement trigger (e.g. the test suite)
    # must not support advertisement
    global default_feature, tcltk, htmlfiles, tools, testsuite, ext_feature, private_crt, prepend_path
    default_feature = Feature(db, "DefaultFeature", "Python",
                              "Python Interpreter and Libraries",
                              1, directory = "TARGETDIR")
    shared_crt = Feature(db, "SharedCRT", "MSVCRT", "C Run-Time (system-wide)", 0,
                         level=0)
    private_crt = Feature(db, "PrivateCRT", "MSVCRT", "C Run-Time (private)", 0,
                          level=0)
    # We don't support advertisement of extensions
    ext_feature = Feature(db, "Extensions", "Register Extensions",
                          "Make this Python installation the default Python installation", 3,
                         parent = default_feature, attributes=2|8)
    if have_tcl:
        tcltk = Feature(db, "TclTk", "Tcl/Tk", "Tkinter, IDLE, pydoc", 5,
                    parent = default_feature, attributes=2)
    htmlfiles = Feature(db, "Documentation", "Documentation",
                        "Python HTMLHelp File", 7, parent = default_feature)
    tools = Feature(db, "Tools", "Utility Scripts",
                    "Python utility scripts (Tools/)", 9,
                    parent = default_feature, attributes=2)
    testsuite = Feature(db, "Testsuite", "Test suite",
                        "Python test suite (Lib/test/)", 11,
                        parent = default_feature, attributes=2|8)
    # prepend_path is an additional feature which is to be off by default.
    # Since the default level for the above features is 1, this needs to be
    # at least level higher.
    prepend_path = Feature(db, "PrependPath", "Add python.exe to Path",
                        "Prepend [TARGETDIR] to the system Path variable. "
                        "This allows you to type 'python' into a command "
                        "prompt without needing the full path.", 13,
                        parent = default_feature, attributes=2|8,
                        level=2)
    add_data(db, "Condition", [("SharedCRT", 1, sys32cond),
                               ("PrivateCRT", 1, "not "+sys32cond),
                               ("PrependPath", 1, "ModifyPath='0'")])

def extract_msvcr100():
    # Find the redistributable files
    if msilib.Win64:
        arch = "x64"
    else:
        arch = "x86"
    dir = os.path.join(os.environ['VS100COMNTOOLS'], r"..\..\VC\redist\%s\Microsoft.VC100.CRT" % arch)

    result = []
    installer = msilib.MakeInstaller()
    # At least for VS2010, manifests are no longer provided
    name = "msvcr100.dll"
    path = os.path.join(dir, name)
    kw = {'src':path}
    kw['version'] = installer.FileVersion(path, 0)
    kw['language'] = installer.FileVersion(path, 1)
    return name, kw

def generate_license():
    import shutil, glob
    out = open("LICENSE.txt", "w")
    shutil.copyfileobj(open(os.path.join(srcdir, "LICENSE")), out)
    shutil.copyfileobj(open("crtlicense.txt"), out)
    for name, pat, file in (("bzip2","bzip2-*", "LICENSE"),
                      ("openssl", "openssl-*", "LICENSE"),
                      ("Tcl", "tcl8*", "license.terms"),
                      ("Tk", "tk8*", "license.terms"),
                      ("Tix", "tix-*", "license.terms")):
        out.write("\nThis copy of Python includes a copy of %s, which is licensed under the following terms:\n\n" % name)
        dirs = glob.glob(srcdir+"/../"+pat)
        if not dirs:
            raise ValueError, "Could not find "+srcdir+"/../"+pat
        if len(dirs) > 2 and not snapshot:
            raise ValueError, "Multiple copies of "+pat
        dir = dirs[0]
        shutil.copyfileobj(open(os.path.join(dir, file)), out)
    out.close()


class PyDirectory(Directory):
    """By default, all components in the Python installer
    can run from source."""
    def __init__(self, *args, **kw):
        if "componentflags" not in kw:
            kw['componentflags'] = 2 #msidbComponentAttributesOptional
        Directory.__init__(self, *args, **kw)

def hgmanifest():
    # Fetch file list from Mercurial
    process = subprocess.Popen(['hg', 'manifest'], stdout=subprocess.PIPE)
    stdout, stderr = process.communicate()
    # Create nested directories for file tree
    result = {}
    for line in stdout.splitlines():
        components = line.split('/')
        d = result
        while len(components) > 1:
            d1 = d.setdefault(components[0], {})
            d = d1
            del components[0]
        d[components[0]] = None
    return result


# See "File Table", "Component Table", "Directory Table",
# "FeatureComponents Table"
def add_files(db):
    installer = msilib.MakeInstaller()
    hgfiles = hgmanifest()
    cab = CAB("python")
    tmpfiles = []
    # Add all executables, icons, text files into the TARGETDIR component
    root = PyDirectory(db, cab, None, srcdir, "TARGETDIR", "SourceDir")
    default_feature.set_current()
    if not msilib.Win64:
        root.add_file("%s/w9xpopen.exe" % PCBUILD)
    root.add_file("README.txt", src="README")
    root.add_file("NEWS.txt", src="Misc/NEWS")
    generate_license()
    root.add_file("LICENSE.txt", src=os.path.abspath("LICENSE.txt"))
    root.start_component("python.exe", keyfile="python.exe")
    root.add_file("%s/python.exe" % PCBUILD)
    root.start_component("pythonw.exe", keyfile="pythonw.exe")
    root.add_file("%s/pythonw.exe" % PCBUILD)

    # msidbComponentAttributesSharedDllRefCount = 8, see "Component Table"
    dlldir = PyDirectory(db, cab, root, srcdir, "DLLDIR", ".")
    launcherdir = PyDirectory(db, cab, root, srcdir, "LAUNCHERDIR", ".")

    # msidbComponentAttributes64bit = 256; this disables registry redirection
    # to allow setting the SharedDLLs key in the 64-bit portion even for a
    # 32-bit installer.
    # XXX does this still allow to install the component on a 32-bit system?
    # Pick up 32-bit binary always
    launcher = os.path.join(srcdir, "PCBuild", "py.exe")
    launcherdir.start_component("launcher", flags = 8+256, keyfile="py.exe")
    launcherdir.add_file("%s/py.exe" % PCBUILD,
                         version=installer.FileVersion(launcher, 0),
                         language=installer.FileVersion(launcher, 1))
    launcherw = os.path.join(srcdir, "PCBuild", "pyw.exe")
    launcherdir.start_component("launcherw", flags = 8+256, keyfile="pyw.exe")
    launcherdir.add_file("%s/pyw.exe" % PCBUILD,
                         version=installer.FileVersion(launcherw, 0),
                         language=installer.FileVersion(launcherw, 1))

    pydll = "python%s%s.dll" % (major, minor)
    pydllsrc = os.path.join(srcdir, PCBUILD, pydll)
    dlldir.start_component("DLLDIR", flags = 8, keyfile = pydll, uuid = pythondll_uuid)
    pyversion = installer.FileVersion(pydllsrc, 0)
    if not snapshot:
        # For releases, the Python DLL has the same version as the
        # installer package.
        assert pyversion.split(".")[:3] == current_version.split(".")
    dlldir.add_file("%s/python%s%s.dll" % (PCBUILD, major, minor),
                    version=pyversion,
                    language=installer.FileVersion(pydllsrc, 1))
    DLLs = PyDirectory(db, cab, root, srcdir + "/" + PCBUILD, "DLLs", "DLLS|DLLs")

    # msvcr90.dll: Need to place the DLL and the manifest into the root directory,
    # plus another copy of the manifest in the DLLs directory, with the manifest
    # pointing to the root directory
    root.start_component("msvcr90", feature=private_crt)
    # Results are ID,keyword pairs
    crtdll, kwds = extract_msvcr100()
    root.add_file(crtdll, **kwds)
    # Copy the manifest
    # Actually, don't do that anymore - no DLL in DLLs should have a manifest
    # dependency on msvcr90.dll anymore, so this should not be necessary
    #manifest_dlls = manifest[0]+".root"
    #open(manifest_dlls, "w").write(open(manifest[1]['src']).read().replace("msvcr","../msvcr"))
    #DLLs.start_component("msvcr90_dlls", feature=private_crt)
    #DLLs.add_file(manifest[0], src=os.path.abspath(manifest_dlls))

    # Now start the main component for the DLLs directory;
    # no regular files have been added to the directory yet.
    DLLs.start_component()

    # Check if _ctypes.pyd exists
    have_ctypes = os.path.exists(srcdir+"/%s/_ctypes.pyd" % PCBUILD)
    if not have_ctypes:
        print("WARNING: _ctypes.pyd not found, ctypes will not be included")
        extensions.remove("_ctypes.pyd")

    # Add all .py files in Lib, except tkinter, test
    dirs = []
    pydirs = [(root, "Lib", hgfiles["Lib"], default_feature)]
    while pydirs:
        # Commit every now and then, or else installer will complain
        db.Commit()
        parent, dir, files, feature = pydirs.pop()
        if dir.startswith("plat-"):
            continue
        if dir in ["tkinter", "idlelib", "turtledemo"]:
            if not have_tcl:
                continue
            feature = tcltk
            tcltk.set_current()
        elif dir in ('test', 'tests'):
            feature = testsuite
        elif not have_ctypes and dir == "ctypes":
            continue
        feature.set_current()
        lib = PyDirectory(db, cab, parent, dir, dir, "%s|%s" % (parent.make_short(dir), dir))
        dirs.append(lib)
        has_py = False
        for name, subdir in files.items():
            if subdir is None:
                assert os.path.isfile(os.path.join(lib.absolute, name))
                if name == 'README':
                    lib.add_file("README.txt", src="README")
                else:
                    lib.add_file(name)
                    has_py = has_py or name.endswith(".py") or name.endswith(".pyw")
            else:
                assert os.path.isdir(os.path.join(lib.absolute, name))
                pydirs.append((lib, name, subdir, feature))

        if has_py:
            lib.remove_pyc()
    # Add DLLs
    default_feature.set_current()
    lib = DLLs
    lib.add_file("py.ico", src=srcdir+"/PC/py.ico")
    lib.add_file("pyc.ico", src=srcdir+"/PC/pyc.ico")
    dlls = []
    tclfiles = []
    for f in extensions:
        if f=="_tkinter.pyd":
            continue
        if not os.path.exists(srcdir + "/" + PCBUILD + "/" + f):
            print("WARNING: Missing extension", f)
            continue
        dlls.append(f)
        lib.add_file(f)
    lib.add_file('python3.dll')
    # Add sqlite
    if msilib.msi_type=="Intel64;1033":
        sqlite_arch = "/ia64"
    elif msilib.msi_type=="x64;1033":
        sqlite_arch = "/amd64"
        tclsuffix = "64"
    else:
        sqlite_arch = ""
        tclsuffix = ""
    lib.add_file("sqlite3.dll")
    if have_tcl:
        if not os.path.exists("%s/%s/_tkinter.pyd" % (srcdir, PCBUILD)):
            print("WARNING: Missing _tkinter.pyd")
        else:
            lib.start_component("TkDLLs", tcltk)
            lib.add_file("_tkinter.pyd")
            dlls.append("_tkinter.pyd")
            tcldir = os.path.normpath(srcdir+("/../tcltk%s/bin" % tclsuffix))
            for f in glob.glob1(tcldir, "*.dll"):
                lib.add_file(f, src=os.path.join(tcldir, f))
    # check whether there are any unknown extensions
    for f in glob.glob1(srcdir+"/"+PCBUILD, "*.pyd"):
        if f.endswith("_d.pyd"): continue # debug version
        if f in dlls: continue
        print("WARNING: Unknown extension", f)

    # Add headers
    default_feature.set_current()
    lib = PyDirectory(db, cab, root, "include", "include", "INCLUDE|include")
    lib.glob("*.h")
    lib.add_file("pyconfig.h", src="../PC/pyconfig.h")
    # Add import libraries
    lib = PyDirectory(db, cab, root, PCBUILD, "libs", "LIBS|libs")
    for f in dlls:
        lib.add_file(f.replace('pyd','lib'))
    lib.add_file('python%s%s.lib' % (major, minor))
    lib.add_file('python3.lib')
    # Add the mingw-format library
    if have_mingw:
        lib.add_file('libpython%s%s.a' % (major, minor))
    if have_tcl:
        # Add Tcl/Tk
        tcldirs = [(root, '../tcltk%s/lib' % tclsuffix, 'tcl')]
        tcltk.set_current()
        while tcldirs:
            parent, phys, dir = tcldirs.pop()
            lib = PyDirectory(db, cab, parent, phys, dir, "%s|%s" % (parent.make_short(dir), dir))
            if not os.path.exists(lib.absolute):
                continue
            for f in os.listdir(lib.absolute):
                if os.path.isdir(os.path.join(lib.absolute, f)):
                    tcldirs.append((lib, f, f))
                else:
                    lib.add_file(f)
    # Add tools
    tools.set_current()
    tooldir = PyDirectory(db, cab, root, "Tools", "Tools", "TOOLS|Tools")
    for f in ['i18n', 'pynche', 'Scripts']:
        lib = PyDirectory(db, cab, tooldir, f, f, "%s|%s" % (tooldir.make_short(f), f))
        lib.glob("*.py")
        lib.glob("*.pyw", exclude=['pydocgui.pyw'])
        lib.remove_pyc()
        lib.glob("*.txt")
        if f == "pynche":
            x = PyDirectory(db, cab, lib, "X", "X", "X|X")
            x.glob("*.txt")
        if os.path.exists(os.path.join(lib.absolute, "README")):
            lib.add_file("README.txt", src="README")
        if f == 'Scripts':
            lib.add_file("2to3.py", src="2to3")
            lib.add_file("pydoc3.py", src="pydoc3")
            lib.add_file("pysetup3.py", src="pysetup3")
            lib.add_file("pyvenv.py", src="pyvenv")
            if have_tcl:
                lib.start_component("pydocgui.pyw", tcltk, keyfile="pydocgui.pyw")
                lib.add_file("pydocgui.pyw")
    # Add documentation
    htmlfiles.set_current()
    lib = PyDirectory(db, cab, root, "Doc", "Doc", "DOC|Doc")
    lib.start_component("documentation", keyfile=docfile)
    lib.add_file(docfile, src="build/htmlhelp/"+docfile)

    cab.commit(db)

    for f in tmpfiles:
        os.unlink(f)

# See "Registry Table", "Component Table"
def add_registry(db):
    # File extensions, associated with the REGISTRY.def component
    # IDLE verbs depend on the tcltk feature.
    # msidbComponentAttributesRegistryKeyPath = 4
    # -1 for Root specifies "dependent on ALLUSERS property"
    tcldata = []
    if have_tcl:
        tcldata = [
            ("REGISTRY.tcl", msilib.gen_uuid(), "TARGETDIR", registry_component, None,
             "py.IDLE")]
    add_data(db, "Component",
             # msidbComponentAttributesRegistryKeyPath = 4
             [("REGISTRY", msilib.gen_uuid(), "TARGETDIR", registry_component, None,
               "InstallPath"),
              ("REGISTRY.doc", msilib.gen_uuid(), "TARGETDIR", registry_component, None,
               "Documentation"),
              ("REGISTRY.path", msilib.gen_uuid(), "TARGETDIR", registry_component, None,
              None),
              ("REGISTRY.def", msilib.gen_uuid(), "TARGETDIR", registry_component,
               None, None)] + tcldata)
    # See "FeatureComponents Table".
    # The association between TclTk and pythonw.exe is necessary to make ICE59
    # happy, because the installer otherwise believes that the IDLE and PyDoc
    # shortcuts might get installed without pythonw.exe being install. This
    # is not true, since installing TclTk will install the default feature, which
    # will cause pythonw.exe to be installed.
    # REGISTRY.tcl is not associated with any feature, as it will be requested
    # through a custom action
    tcldata = []
    if have_tcl:
        tcldata = [(tcltk.id, "pythonw.exe")]
    add_data(db, "FeatureComponents",
             [(default_feature.id, "REGISTRY"),
              (htmlfiles.id, "REGISTRY.doc"),
              (prepend_path.id, "REGISTRY.path"),
              (ext_feature.id, "REGISTRY.def")] +
              tcldata
              )
    # Extensions are not advertised. For advertised extensions,
    # we would need separate binaries that install along with the
    # extension.
    pat = r"Software\Classes\%sPython.%sFile\shell\%s\command"
    ewi = "Edit with IDLE"
    pat2 = r"Software\Classes\%sPython.%sFile\DefaultIcon"
    pat3 = r"Software\Classes\%sPython.%sFile"
    pat4 = r"Software\Classes\%sPython.%sFile\shellex\DropHandler"
    tcl_verbs = []
    if have_tcl:
        tcl_verbs=[
             ("py.IDLE", -1, pat % (testprefix, "", ewi), "",
              r'"[TARGETDIR]pythonw.exe" "[TARGETDIR]Lib\idlelib\idle.pyw" -e "%1"',
              "REGISTRY.tcl"),
             ("pyw.IDLE", -1, pat % (testprefix, "NoCon", ewi), "",
              r'"[TARGETDIR]pythonw.exe" "[TARGETDIR]Lib\idlelib\idle.pyw" -e "%1"',
              "REGISTRY.tcl"),
        ]
    add_data(db, "Registry",
            [# Extensions
             ("py.ext", -1, r"Software\Classes\."+ext, "",
              "Python.File", "REGISTRY.def"),
             ("pyw.ext", -1, r"Software\Classes\."+ext+'w', "",
              "Python.NoConFile", "REGISTRY.def"),
             ("pyc.ext", -1, r"Software\Classes\."+ext+'c', "",
              "Python.CompiledFile", "REGISTRY.def"),
             ("pyo.ext", -1, r"Software\Classes\."+ext+'o', "",
              "Python.CompiledFile", "REGISTRY.def"),
             # MIME types
             ("py.mime", -1, r"Software\Classes\."+ext, "Content Type",
              "text/plain", "REGISTRY.def"),
             ("pyw.mime", -1, r"Software\Classes\."+ext+'w', "Content Type",
              "text/plain", "REGISTRY.def"),
             #Verbs
             ("py.open", -1, pat % (testprefix, "", "open"), "",
              r'"[LAUNCHERDIR]py.exe" "%1" %*', "REGISTRY.def"),
             ("pyw.open", -1, pat % (testprefix, "NoCon", "open"), "",
              r'"[LAUNCHERDIR]pyw.exe" "%1" %*', "REGISTRY.def"),
             ("pyc.open", -1, pat % (testprefix, "Compiled", "open"), "",
              r'"[LAUNCHERDIR]py.exe" "%1" %*', "REGISTRY.def"),
             ] + tcl_verbs + [
             #Icons
             ("py.icon", -1, pat2 % (testprefix, ""), "",
              r'[DLLs]py.ico', "REGISTRY.def"),
             ("pyw.icon", -1, pat2 % (testprefix, "NoCon"), "",
              r'[DLLs]py.ico', "REGISTRY.def"),
             ("pyc.icon", -1, pat2 % (testprefix, "Compiled"), "",
              r'[DLLs]pyc.ico', "REGISTRY.def"),
             # Descriptions
             ("py.txt", -1, pat3 % (testprefix, ""), "",
              "Python File", "REGISTRY.def"),
             ("pyw.txt", -1, pat3 % (testprefix, "NoCon"), "",
              "Python File (no console)", "REGISTRY.def"),
             ("pyc.txt", -1, pat3 % (testprefix, "Compiled"), "",
              "Compiled Python File", "REGISTRY.def"),
             # Drop Handler
             ("py.drop", -1, pat4 % (testprefix, ""), "",
              "{60254CA5-953B-11CF-8C96-00AA00B8708C}", "REGISTRY.def"),
             ("pyw.drop", -1, pat4 % (testprefix, "NoCon"), "",
              "{60254CA5-953B-11CF-8C96-00AA00B8708C}", "REGISTRY.def"),
             ("pyc.drop", -1, pat4 % (testprefix, "Compiled"), "",
              "{60254CA5-953B-11CF-8C96-00AA00B8708C}", "REGISTRY.def"),
            ])

    # Registry keys
    prefix = r"Software\%sPython\PythonCore\%s" % (testprefix, short_version)
    add_data(db, "Registry",
             [("InstallPath", -1, prefix+r"\InstallPath", "", "[TARGETDIR]", "REGISTRY"),
              ("InstallGroup", -1, prefix+r"\InstallPath\InstallGroup", "",
               "Python %s" % short_version, "REGISTRY"),
              ("PythonPath", -1, prefix+r"\PythonPath", "",
               r"[TARGETDIR]Lib;[TARGETDIR]DLLs", "REGISTRY"),
              ("Documentation", -1, prefix+r"\Help\Main Python Documentation", "",
               "[TARGETDIR]Doc\\"+docfile , "REGISTRY.doc"),
              ("Modules", -1, prefix+r"\Modules", "+", None, "REGISTRY"),
              ("AppPaths", -1, r"Software\Microsoft\Windows\CurrentVersion\App Paths\Python.exe",
               "", r"[TARGETDIR]Python.exe", "REGISTRY.def"),
              ("DisplayIcon", -1,
               r"Software\Microsoft\Windows\CurrentVersion\Uninstall\%s" % product_code,
               "DisplayIcon", "[TARGETDIR]python.exe", "REGISTRY")
              ])
    # Shortcuts, see "Shortcut Table"
    add_data(db, "Directory",
             [("ProgramMenuFolder", "TARGETDIR", "."),
              ("MenuDir", "ProgramMenuFolder", "PY%s%s|%sPython %s.%s" % (major,minor,testprefix,major,minor))])
    add_data(db, "RemoveFile",
             [("MenuDir", "TARGETDIR", None, "MenuDir", 2)])
    tcltkshortcuts = []
    if have_tcl:
        tcltkshortcuts = [
              ("IDLE", "MenuDir", "IDLE|IDLE (Python GUI)", "pythonw.exe",
               tcltk.id, r'"[TARGETDIR]Lib\idlelib\idle.pyw"', None, None, "python_icon.exe", 0, None, "TARGETDIR"),
              ("PyDoc", "MenuDir", "MODDOCS|Module Docs", "pythonw.exe",
               tcltk.id, r'"[TARGETDIR]Tools\scripts\pydocgui.pyw"', None, None, "python_icon.exe", 0, None, "TARGETDIR"),
              ]
    add_data(db, "Shortcut",
             tcltkshortcuts +
             [# Advertised shortcuts: targets are features, not files
              ("Python", "MenuDir", "PYTHON|Python (command line)", "python.exe",
               default_feature.id, None, None, None, "python_icon.exe", 2, None, "TARGETDIR"),
              # Advertising the Manual breaks on (some?) Win98, and the shortcut lacks an
              # icon first.
              #("Manual", "MenuDir", "MANUAL|Python Manuals", "documentation",
              # htmlfiles.id, None, None, None, None, None, None, None),
              ## Non-advertised shortcuts: must be associated with a registry component
              ("Manual", "MenuDir", "MANUAL|Python Manuals", "REGISTRY.doc",
               "[#%s]" % docfile, None,
               None, None, None, None, None, None),
              ("Uninstall", "MenuDir", "UNINST|Uninstall Python", "REGISTRY",
               SystemFolderName+"msiexec",  "/x%s" % product_code,
               None, None, None, None, None, None),
              ])
    db.Commit()

def build_pdbzip():
    pdbexclude = ['kill_python.pdb', 'make_buildinfo.pdb',
                  'make_versioninfo.pdb']
    path = "python-%s%s-pdb.zip" % (full_current_version, msilib.arch_ext)
    pdbzip = zipfile.ZipFile(path, 'w')
    for f in glob.glob1(os.path.join(srcdir, PCBUILD), "*.pdb"):
        if f not in pdbexclude and not f.endswith('_d.pdb'):
            pdbzip.write(os.path.join(srcdir, PCBUILD, f), f)
    pdbzip.close()

db,msiname = build_database()
try:
    add_features(db)
    add_ui(db)
    add_files(db)
    add_registry(db)
    remove_old_versions(db)
    db.Commit()
finally:
    del db

# Merge CRT into MSI file. This requires the database to be closed.
mod_dir = os.path.join(os.environ["ProgramFiles"], "Common Files", "Merge Modules")
if msilib.Win64:
    modules = ["Microsoft_VC100_CRT_x64.msm"]
else:
    modules = ["Microsoft_VC100_CRT_x86.msm"]

for i, n in enumerate(modules):
    modules[i] = os.path.join(mod_dir, n)

def merge(msi, feature, rootdir, modules):
    cab_and_filecount = []
    # Step 1: Merge databases, extract cabfiles
    m = msilib.MakeMerge2()
    m.OpenLog("merge.log")
    m.OpenDatabase(msi)
    for module in modules:
        print module
        m.OpenModule(module,0)
        m.Merge(feature, rootdir)
        print "Errors:"
        for e in m.Errors:
            print e.Type, e.ModuleTable, e.DatabaseTable
            print "   Modkeys:",
            for s in e.ModuleKeys: print s,
            print
            print "   DBKeys:",
            for s in e.DatabaseKeys: print s,
            print
        cabname = tempfile.mktemp(suffix=".cab")
        m.ExtractCAB(cabname)
        cab_and_filecount.append((cabname, len(m.ModuleFiles)))
        m.CloseModule()
    m.CloseDatabase(True)
    m.CloseLog()

    # Step 2: Add CAB files
    i = msilib.MakeInstaller()
    db = i.OpenDatabase(msi, constants.msiOpenDatabaseModeTransact)

    v = db.OpenView("SELECT LastSequence FROM Media")
    v.Execute(None)
    maxmedia = -1
    while 1:
        r = v.Fetch()
        if not r: break
        seq = r.IntegerData(1)
        if seq > maxmedia:
            maxmedia = seq
    print "Start of Media", maxmedia

    for cabname, count in cab_and_filecount:
        stream = "merged%d" % maxmedia
        msilib.add_data(db, "Media",
                [(maxmedia+1, maxmedia+count, None, "#"+stream, None, None)])
        msilib.add_stream(db, stream,  cabname)
        os.unlink(cabname)
        maxmedia += count
    # The merge module sets ALLUSERS to 1 in the property table.
    # This is undesired; delete that
    v = db.OpenView("DELETE FROM Property WHERE Property='ALLUSERS'")
    v.Execute(None)
    v.Close()
    db.Commit()

merge(msiname, "SharedCRT", "TARGETDIR", modules)

# certname (from config.py) should be (a substring of)
# the certificate subject, e.g. "Python Software Foundation"
if certname:
    os.system('signtool sign /n "%s" /t http://timestamp.verisign.com/scripts/timestamp.dll %s' % (certname, msiname))

if pdbzip:
    build_pdbzip()